Horse-drawn vehicle on dirt road by stone formation. There are a cactus and a yucca plant in the foreground. Printed text on verso reads, "Desert scene, Arizona - The surface of Arizona is a series of plateaus, ranging in altitude from 80 to 7500...

"As the town's wealth grew and powerful neighbors established themselves, the need for protection resulted in the first known permanent stone fortifications. By approximately 7500 BCE, the town, estimated to have had a population of more than 2,000...